California Code, Health and Safety Code - HSC § 443.12

(a) A provision in a contract, will, or other agreement executed on or after January 1, 2016, whether written or oral, to the extent the provision would affect whether a person may make, withdraw, or rescind a request for an aid-in-dying drug is not valid.

(b) An obligation owing under any contract executed on or after January 1, 2016, may not be conditioned or affected by a qualified individual making, withdrawing, or rescinding a request for an aid-in-dying drug.